Please help me out with this question please

They sought new allies to germany tried to get mexico to join and put pressure on the us. the us joined the allies because of the lucitania

The first one, i believe, would be correct. all the others have one thing in common, and that's that they have repeating numbers. in the second one, x and y have repeating 6's and 3's, and in the third, x and y have repeating 6's as well. in the last one, there are repeating 3's. the first one has no repeating numbers.